<!doctype html>
<html lang="zh">
<head>
    <meta charset="UTF-8">

    <title>14</title>
    <style>
        /* 基本样式 */
        *{
            margin:0;
            padding: 0;
        }
        .container{
            font-size:12px;
            font-family: sans-serif;
        }
        .header{
            background:lightblue;
            height: 80px;
            line-height: 80px;
        }
        .wrapper{
            background:lightcoral;
            width:100%;
        }
        .content{
            background:lightcyan;
        }
        .navigation{
            background:lightgoldenrodyellow;
        }
        .extra{
            background:lightgreen;
        }
        .footer{
            background:lightseagreen;
        }

        /*布局*/
        .wrapper{
            float: left;
        }
        .content{
            margin:0 200px;
        }
        .navigation{
            float:left;
            width:200px;
            margin-left:-200px;
        }
        .extra{
            float:left;
            width:200px;
            margin-left:-100%;
        }

        .footer{
            clear:left;
        }
    </style>
</head>
<body>
    <div class="container">
        <div class="header">
            <h1>Header</h1>
        </div>
        <div class="wrapper">
            <div class="content">
                <p>
                    column long long column very long fill fill fill long text text column text silly very make long very fill silly make make long make text fill very long text column silly silly very column long very column filler fill long make filler long silly very long silly silly silly long filler make column filler make silly long long fill very.
                </p>
            </div>
        </div>
        <div class="navigation">
            <p>
                <strong>navigation here.</strong>
                long long fill filler very fill column column silly filler very filler fill fill filler text fill very silly fill text filler silly silly filler fill very make fill column text column very very column fill fill very silly column silly silly fill fill long filler
            </p>
        </div>
        <div class="extra">3) More stuff here.very text make long silly make text very very text make long filler very make column make silly column fill silly column long make silly filler column filler silly long long column fill silly column very</div>
        <div class="footer">Here it goes the footer</div>
    </div>
</body>
</html>